Welp, this was some bs from the author. He's buying in that ideology of 'if you work hard enough...' and now he's putting it into paper as if that was the best solution.
Ryoma is way beyond rich enough to give these children a healthy environment to grow up. But no, homeless, exploited children labourers is god's will, apparently. According to the author, the low-upper and upper-middle class should just let poverty continue to exist, it's for the best. It's just the natural way of society. And not a necessary structure of a society that makes a few ultra wealthy.